Keystones — Lintel
Five GCSE retrieval questions · 18 January 2020 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.00091
Answer: 9.1 × 10-4 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 32cm, angle = 26°. Find adjacent side
Answer: 28.8cm -
4. Ratio Mixed ratio problems
£252.00 is shared between A and B in the ratio 4:5. How much does A receive?
Answer: £112.00 -
5. Statistics Mean
Calculate the mean of: 13, 44, 23, 16, 16, 38, 20
Answer: 24.3